Who/What are the archetypal characters for A Wrinkle in Time?

Monster-


Shadow(s)-


Passive Mentor-


Mentor(s)-Who/What are the archetypal characters for A Wrinkle in Time?
It would be the monster.


Shadows? not a character, but the shadow over the planet Camazotz.


I don't know what is meant by ';passive mentor.';


Mentors: Mrs. Who, Whatsit and whatever the last one's name was. Charles Wallace might also be consdiered a mentor.